Unbilled Receivables - Additional Information (Details) $ in Millions	Apr. 03, 2022 USD ($) contract	Dec. 31, 2021 USD ($) contract
Contracts In Process [Line Items]
Net unbilled receivables	$ 7,888	$ 8,498
Combat Systems | Two Large International Contracts
Contracts In Process [Line Items]
Net unbilled receivables	$ 2,400	$ 3,300
Number of contracts | contract	2	2
Combat Systems | Wheeled Armored Vehicle
Contracts In Process [Line Items]
Net unbilled receivables	$ 1,000
Combat Systems | Tracked Vehicle
Contracts In Process [Line Items]
Net unbilled receivables	$ 1,400